Four gang members have been charged with beating a Cicero man to death after one accused him of breaking a bottle on the floor at a party they were all attending, authorities said.

Peter Ocampo, 28, of the 3500 block of South 57th Court in the west suburb, was declared dead outside an apartment building in the 2500 block of South Central Avenue at 5:07 a.m. on Saturday, according to Cicero police.

The evening started with Ocampo attending a birthday party for a gang member he knew at the apartment building, prosecutors said. He had been invited, brought a bottle of alcohol and was there for a few hours and was sitting at a kitchen table with Noriega and the three others when Noriega began arguing with Ocampo about his breaking a bottle on the floor, prosecutors said.

Noriega began beating Ocampo in the head with a bottle, and the four dragged Ocampo outside, where all of them beat him, while they "chastised and belittled him," Conklin said. At least one of the four men took Ocampo's wallet, phone and cash, prosecutors said.

Ocampo was left bleeding in the apartment building's parking lot, Conklin said.

Police were called to the apartment building about 4:45 a.m. Saturday after a resident of the apartment building noticed a man lying in the parking lot.

Police cordoned off the scene and took Noriega, of the 1000 block of Leawood Drive in Joliet, and Galvez, of the 5500 block of West 22nd Place in Cicero, into custody at the apartment where the party took place, about two hours after Ocampo was declared dead at 5:07 a.m., according to arrest records.

Police arrested Naves, of the 2200 block of South Austin Avenue in Cicero, and Escobar, of the 2500 block of Kenilworth Avenue in Berwyn, about 12 hours after the beating took place.

The Cook County medical examiner's office determined Ocampo died from injuries suffered in a beating in a homicide. Charges were approved by the Cook County state's attorney's office late Monday.

"The Cicero police worked hard as they always do to identify the suspects involved in this attack," said Cicero spokesman Ray Hanania. "In this case, they were able to quickly identify four individuals who are associated with a street gang and who have now each been charged with … the tragic killing."